<template>
  <div class="top-category">
    <div class="container">
      <XtxBreadcrumb/>
      <XtxCarousel :sliders="sliders" />
      <div class="sub-list">
        <h3>全部分类</h3>
        <ul>
          <li v-for="item in topCategory.children" :key="item.id">
            <router-link :to="`/category/sub/${item.id}`" >
              <img :src="item.picture" />
              <p>{{ item.name }}</p>
            </router-link>
          </li>
        </ul>
      </div>
      <!-- 分类关联商品 -->
      <div v-for="item in subList" :key="item.id">
        <div class="ref-goods" v-if="item.goods.length" >
          <div class="head">
            <h3>- {{ item.name }} -</h3>
            <p class="tag">{{ item.desc }}</p>
            <XtxMore />
          </div>
          <div class="body" v-if="item.goods && item.goods.length">
            <GoodsItem v-for="g in item.goods" :key="g.id" :good="g" />
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import { findBanner } from '@/api/home'
import { findTopCategory } from '@/api/category'
import { ref, onMounted, computed, watch } from 'vue'
import { useStore } from 'vuex'
import { useRoute } from 'vue-router'
import GoodsItem from './components/goods-item.vue'
import XtxSkeleton from '@/components/library/xtx-skeleton.vue'
import XtxBreadcrumb from '@/components/library/xtx-breadcrumb.vue'
export default {
  components: { GoodsItem, XtxSkeleton, XtxBreadcrumb },
  setup() {
    const sliders = ref([])
    onMounted(async () => {
      const { result } = await findBanner();
      sliders.value = result;
    })
    const store = useStore()
    const route = useRoute()
    const topCategory = computed(() => {
      let cate = {}
      const item = store.state.category.list.find(item => {
        return item.id === route.params.id
      })
      if (item) cate = item
      return cate
    })
    // 推荐商品
    const subList = ref([])
    watch(() => route.params.id, async (newVal) => {
      if (newVal && route.path === `/category/${newVal}` ) {
        const { result } = await findTopCategory(route.params.id)
        subList.value = result.children
      }
    }, { immediate: true })
    return {
      sliders,
      topCategory,
      subList
    };
  },
}
</script>

<style lang="scss" scoped>
.top-category {
  h3 {
    font-size: 28px;
    color: #666;
    font-weight: 400;
    text-align: center;
    line-height: 80px;
  }
  .sub-list {
    margin-top: 20px;
    background-color: #fff;
    ul {
      display: flex;
      padding: 0 32px;
      flex-wrap: wrap;
      li {
        width: 168px;
        height: 160px;
        a {
          text-align: center;
          display: block;
          font-size: 16px;
          img {
            width: 100px;
            height: 100px;
          }
          p {
            line-height: 40px;
          }
          &:hover {
            color: $xtxColor;
          }
        }
      }
    }
  }
  .ref-goods {
    background-color: #fff;
    margin-top: 20px;
    position: relative;
    .head {
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      .xtx-more {
        position: absolute;
        top: 20px;
        right: 20px;
      }
      .tag {
        text-align: center;
        color: #999;
        font-size: 20px;
        padding-bottom: 20px;
      }
    }
    .body {
      display: flex;
      justify-content: flex-start;
      flex-wrap: wrap;
      padding: 0 65px 30px;
    }
  }
}
</style>